XPress the fuel filler flap in the direction of
arrow:.
The fuel filler flap swings up.
XTurn the fuel filler cap counterclockwise
and remove it.
XInsert the fuel filler cap into the holder on
the inside of fuel filler flap ;.
XCompletely insert the filler neck of the fuel
pump nozzle into the tank, hook in place
and refuel.
XOnly fill the tank until the pump nozzle
switches off.
iDo not add any more fuel after the pump
stops filling for the first time. Otherwise,
fuel may leak out.
Closing the fuel filler flap
XReplace the cap on the filler neck and turn
clockwise until it engages audibly.
XClose the fuel filler flap.
If you drive at speeds above 2 km/ hwith the
fuel filler flap open, the Fuel
fillerflap
openmessage is shown in the multifunction
display.
iClose the fuel filler flap before locking the
vehicle.
iIf you are driving with the fuel filler cap
open, the 8reserve fuel warning lamp
flashes. A message appears in the multi-
function display (
Ypage 271).
In addition, the ;Check Engine warning
lamp may light up (
Ypage 293).
For further information on warning and indi-
cator lamps in the instrument cluster, see
(
Ypage 293).
Refueling169
Driving and parking
Z
XRemove theStart/Sto pbutto nfrom th e
ignition lock.
XInser tth eSmartKey into th eignition lock.
XShift to neutral N.
XReleas eth ebrak epedal .
XReleas eth eelectric parkin gbrake.
XSwitc hoff th eignition and leav eth eSmart -
Key in th eignition lock.
The engin ecan be switched off in an emer-
gency while th evehicl eis in motion by press-
in g and holdin gth eStart/Sto pbutto nfor
three seconds. This function operate sinde-
pendentl yof th eECO start/sto pautomatic
engin eswitch-off function .
Electricparking brak e
Genera lnotes
GWARNIN G
If you leav echildren unsupervised in th evehi-
cle ,they could set it in motion by, for example:
Rrelease th eparkin gbrake.
Rshift th eautomati ctransmission out of th e
parkin gposition P.
Rstart theengine.
In addition ,they may operate vehicl eequip -
men tand become trapped .There is aris kof
an acciden tand injury.
Whe nleavin gth evehicle, always tak eth e
SmartKey wit hyou and loc kth evehicle. Never
leav echildren unsupervised in th evehicle.
The function of th eelectric parkin gbrak eis
dependen ton th eon-boar dvoltage. If th eon -
boar dvoltag eis low or there is amalfunction
in th esystem, it may no tbe possibl eto apply
th erelease dparkin gbrake.
XIf this is th ecase, only park th evehicl eon
level ground and secure it to preven tit roll-
in g away.
XShift th eautomatic transmission to posi-
tion P. It may no
tbe possibl eto release an applie d
parkin gbrak eif th eon-boar dvoltag eis low or
there is amalfunction in th esystem. Contac t
a qualified specialist workshop .
The electric parkin gbrak eperforms afunc-
tion test at regular intervals while th eengin e
is switched off .The sounds that can be hear d
while th is i
s occurrin gare normal.
Applyin gor releasing manually
XTo engage: push handle :.
Whe nth eelectric parkin gbrak eis applied,
th ered F (USAonly) or !(Canada
only) indicato rlamp lights up in th einstru-
men tcluster.
The electric parkin gbrak ecan also be
applie dwhen th eSmartKey is removed.
XTo release: pull handle:.
The red F(USAonly) or !(Canada
only) indicato rlamp in th einstrumen tclus -
te rgoe sout .
The electric parkin gbrak ecan only be
released:
Rwhen th eSmartKey is in position 1or 2in
th eignition loc k (
Ypage 151) or
Rif theignition was switched on usin gth e
Start/Sto pbutto n
172Parking
Driving an d parking
Applying automatically
The electric parking brakeis automatically
applie dwhen th etransmission is in position P
and :
Rtheengin eis switched off or
Rth edriver is no twearing aseat belt and th e
driver' sdoor is opened
To preven tth eelectric parking brak efrom
bein gautomatically applied, pull handle :.
The electric parking brak eis also engage d
automatically if:
RDISTRONI CPLU Sbrings th evehicl eto a
standstill or
Rth eHOLD function is keepin gth evehicl e
stationary
RActive Parking Assis tis keepin gth evehicl e
stationary
In addition ,at least on eof th efollowin gcon-
dition smus tbe fulfilled :
Rthere isasystem malfunction .
Rthepower suppl yis insufficient.
Rth evehicl eis stationary for alengthy
period.
The red F(USAonly) or !(Canada
only) indicator lamp in th einstrumen tcluste r
lights up.
The electric parking brak eis no tautomati-
call yengage dif th eengin eis switched off by
th eECO start/sto pfunction .
Releasing automatically
The electric parking brak eis release dauto -
matically when all of th efollowin gcondition s
are fulfilled :
Rtheengin eis running.
Rth etransmission is in position Dor R.
Rth eseat belt has been fastened.
Ryou depress th eaccelerato rpedal .
If th eautomatic transmission is in position R,
th etrunk lid mus tbe closed. If your seat belt is no
tfastened, th efollowin g
condition smus tbe fulfilled to automatically
release th eelectric parking brake:
Rth edriver' sdoor is closed.
Ryou hav eshifte dout of transmission posi-
tion Por you hav epreviously driven faste r
than 2mph (3 km/h).
En sure that you do no tdepress th eacceler -
ato rpedal unintentionally. Otherwise the
parking brak ewill be release dand th evehicl e
will start to move.
Eme rgency braking
The vehicl ecan also be braked during an
emergenc yby usin gth eelectric parking
brake.
XWhil edriving ,push handle :of th eelectric
parking brak e (
Ypage 172).
The vehicl eis braked as lon gas you keep
handle :of th eelectric parking brak e
pre ssed. The longer electric parking brak e
handle :is depressed, th egreate rth e
braking force .
During braking :
Rawarning tone sounds
Rth ePlease Releas eParkin gBrake
message appear s
Rthered F (USAonly) or !(Canada
only) indicator lamp in th einstrumen tclus -
te rflashes
When th evehicl ehas been braked to a stand-
still, th eelectric parking brak eis engaged.
Park ing the vehicle for a long period
If you leav eth evehicl eparked for longer than
four weeks, th ebattery may be damaged by
exhaustive discharging.
Parking173
Driving and parking
Z
For more dynamic changes, carry out a man-
ual reset.
For further information on the ECO display,
see (
Ypage 236).
Braking
Important safety notes
GWARNING
If you shift down on a slippery road surface in an attempt to increase the engine's braking
effect, the drive wheels could lose their grip.
There is an increased danger of skidding and
accidents.
Do not shift down for additional engine brak-
ing on a slippery road surface.
Downhill gradients
!On long and steep gradients, you must
reduce the load on the brakes by shifting
early to a lower gear. This allows you to take
advantage of the engine braking effect and
helps avoid overheating and excessive
wear of the brakes.
When you take advantage of the engine
braking effect, a drive wheel may not turn
for some time, e.g. on a slippery road sur-
face. This could cause damage to the drive
train. This type of damage is not covered by
the Mercedes-Benz warranty.
Heavy and light loads
GWARNING
If you rest your foot on the brake pedal while
driving, the braking system can overheat. This increases the stopping distance and can even
cause the braking system to fail. There is a
risk of an accident.
Never use the brake pedal as a footrest. Never
depress the brake pedal and the accelerator
pedal at the same time.
!Depressing the brake pedal constantly
results in excessive and premature wear to
the brake pads.
If the brakes have been subjected to a heavy
load, do not stop the vehicle immediately.
Drive on for a short while. This allows the air-
flow to cool the brakes more quickly.
Wet roads
If you have driven for a long time in heavy rain
without braking, there may be a delayed reac-
tion from the brakes when braking for the first
time. This may also occur after the vehicle has
been washed or driven through deep water.
You have to depress the brake pedal more
firmly. Maintain a greater distance from the
vehicle in front.
After driving on a wet road or having the vehi-
cle washed, brake firmly while paying atten-
tion to the traffic conditions. This will warm up
the brake discs, thereby drying them more
quickly and protecting them against corro-
sion.
Limited braking performance on salt-
treated roads
If you drive on salted roads, a layer of salt
residue may form on the brake discs and
brake pads. This can result in a significantly
longer braking distance.
RIn order to prevent any salt build-up, apply
the brakes occasionally while paying atten-
tion to the traffic conditions.
RCarefully depress the brake pedal and the
beginning and end of a journey.
RMaintain a greater distance to the vehicle
ahead.
Servicing the brakes
!If the red brake warning lamp lights up in
the instrument cluster and you hear a warn-
ing tone while the engine is running, the
brake fluid level may be too low. Observe
176Driving tips
Driving and parking
additional warning messages in the multi-
function display.
The brake fluid level may be too low due to
brake pad wear or leaking brake lines.
Have the brake system checked immedi-
ately. This work should be carried out at a
qualified specialist workshop.
!Vehicles with 4MATIC:function or per-
formance tests may only be carried out on
a 2-axle dynamometer. If you wish to oper-
ate the vehicle on such a dynamometer,
please consult an authorized Mercedes-
Benz Center in advance. You could other-
wise damage the drive train or the brake
system.
!Vehicles with 4MATIC: the ESP®system
operates automatically. The engine and the
ignition must therefore be switched off (the
SmartKey must be in position 0or 1in the
ignition lock or the Start/Stop button must
be in position 0or 1) if the electric parking
brake is tested on a brake dynamometer.
Braking triggered automatically by ESP
®
may cause severe damage to the brake
system.
!Vehicles without 4MATIC: the ESP®
system operates automatically. The engine
and the ignition must therefore be switched
off (the SmartKey must be in position 0or 1
in the ignition lock or the Start/Stop button
must be in position 0or 1) if:
Rthe electric parking brake is tested using
a brake dyn
amometer.
Rthe vehicle is towed with one axle raised.
Braking triggered automatically by ESP
®
may cause severe damage to the brake
system.
All checks and maintenance work on the
brake system must be carried out at a quali-
fied specialist workshop. Consult a qualified
specialist workshop to arrange this.
Have brake pads installed and brake fluid
replaced at a qualified specialist workshop. If the brake system has only been subject to
moderate loads, you should test the function-
ality of your brakes at regular intervals.
Information on BAS (Brake Assist) (
Ypage 68)
and BAS PLUS (Brake Assist PLUS)
(
Ypage 69).
For safety reasons, Mercedes-Benz recom-
mends only installing the following brake
disks and brake pads/linings:
Rbrake disks that have been approved by
Mercedes-Benz
Rbrake pads/linings that have been
approved by Mercedes-Benz or that are of
an equivalent standard of quality
Other brake disks or brake pads/linings can
compromise the safety of your vehicle.
Always replace all brake disks and brake
pads/linings on an axle at the same time.
Always install new brake pads/linings when
replacing brake disks.
The vehicle is equipped with lightweight
brake disks to which the wheel assembly with rim and threaded connection is matched.
The use of brake disks other than th ose
appr
oved by Mercedes-Benz can change the
track width and is subject to approval, if appli-
cable.
Shock-type loads when handling the brake
disks, such as when changing wheels, can
lead to a reduction in comfort when driving
with lightweight brake disks. Avoid shock-
type loads on the lightweight brake disks,
particularly on the brake plate.
Mercedes-Benz recommends that you only
use brake fluid that has been specially
approved for your vehicle by Mercedes-Benz,
or which corresponds to an equivalent quality
standard. Brake fluid which has not been
approved for Mercedes-Benz vehicles or
which is not of an equivalent quality could
affect your vehicle's operating safety.
Driving tips177
Driving and parking
Z
Do not use cruise control:
Rin road and traffic conditions which do not
allow you to maintain a constant speed e.g.
in heavy traffic or on winding roads
Ron slippery road surfaces. Braking or accel-
erating could cause the drive wheels to lose
traction and the vehicle could then skid
Rwhen there is poor visibility, e.g. due to fog,
heavy rain or snow
If there is a change of drivers, advise the new
driver of the speed stored.
Cruise control lever
:To activate or increase speed
;To activate or reduce speed
=To deactivate cruise control
?To activate at the current speed/last
stored speed
When you activate cruise control, the stored
speed is shown in the multifunction display
for five seconds. In the speedometer, the seg- ments between the stored speed and the
maximum speed light up.
Storing and maintaining the current
speed
You can store the current speed if you are
driving faster than 20 mph (30 km/h).
XAccelerate the vehicle to the desired
speed.
XBriefly press the cruise control lever up :
or down ;.
XRemove your foot from the accelerator
pedal.
Cruise control is activated. The vehicle
automatically maintains the stored speed.
iCruise control may be unable to maintain
the stored speed on uphill gradients. The
stored speed is resumed when the gradient
evens out. Cruise control maintains the
stored speed on downhill gradients by
automatically applying the brakes.
Calling up the last speed stored
GWARNING
If you call up the stored speed and it is lower
than the current speed, the vehicle deceler-
ates. If you do not know the stored speed, the vehicle could decelerate unexpectedly. There
is a risk of an accident.
Pay attention to the road and traffic condi-
tions before calling up the stored speed. If you
do not know the stored speed, store the
desired speed again.
180Driving system s
Driving an d parking
press the cruise control lever up:or
down ;to the pressure point.
Every time the cruise control lever is
pressed up :or down ;, the last speed
stored is increased or reduced.
iIf you accelerate to overtake, DISTRONIC
PLUS adjusts the vehicle's speed to the last
speed stored after you have finished over-
taking.
Setting the specified minimum distance
You can set the specified minimum distance
for DISTRONIC PLUS by varying the time span
between one and two seconds. With this func-
tion, you can set the minimum distance that
DISTRONIC PLUS keeps to the vehicle in
front, dependent on vehicle speed. You can
see this distance in the multifunction display
(
Ypage 187).
iMake sure that you maintain the mini-
mum distance to the vehicle in front as
required by law. Adjust the distance to the vehicle in front if necessary.
XTo increase: turn control;in direction
=.
DISTRONIC PLUS then maintains a greater
distance between your vehicle and the
vehicle in front.
XTo decrease: turn control;in direc-
tion :.
DISTRONIC PLUS then maintains a shorter
distance between your vehicle and the
vehicle in front.
DISTRONIC PLUS displays in the instru-
ment cluster
Displays in the speedometer
When you switch on DISTRONIC PLUS, trian-
gle ;shows the stored speed.
If DISTRONIC PLUS detects a vehicle in front,
segments between the speed of the vehicle in
front :and stored speed ;light up. The
segments likewise light up if a vehicle in front
is detected in the fast lane.
iFor design reasons, the speed displayed
in the speedometer may differ slightly from
the speed set for DISTRONIC PLUS.
Display when DISTRONIC PLUS is deacti-
vated
:Vehicle in front, if detected
;Distance indicator, current distance to
the vehicle in front
=Specified minimum distance to the vehi-
cle in front; adjustable
?Own vehicle
Driving systems187
Driving and parking
Z
Obstructions and stationary vehicles
DISTRONIC PLUS does not brake for obsta-
cles or stationary vehicles. If, for example, the
detected vehicle turns a corner and reveals
an obstacle or stationary vehicle, DISTRONIC
PLUS will not brake for these.
Crossing vehicles
DISTRONIC PLUS may mistakenly detect
vehicles that are crossing your lane. Activat-
ing DISTRONIC PLUS at traffic lights with
crossing traffic, for example, could cause
your vehicle to pull away unintentionally.
DISTRONIC PLUS with Steering Assist
and Stop&Go Pilot
General notes
DISTRONIC PLUS with Steering Assist and
Stop&Go Pilot aids you in keeping the vehicle
in the center of the driving lane by means of
moderate steering interventions at speeds of
0 - 125 mph (0 - 200 km/h).
It monitors the area in front of your vehicle by
means of camera system :at the top of the
windshield.
At speeds of 0 - 37 mph (0 - 60 km/h),
Stop&Go Pilot focuses on the vehicle in front,
taking into account lane markings, e.g. when
following vehicles in a traffic jam.
At speeds of more than 37 mph (60 km/h)
Steering Assist focuses on detected lane
markings (left and right), and only on the vehi-
cle in front if lane markings are missing.
Steering Assist and Stop&Go Pilot do not pro-
vide any support if these conditions do not
exist.
DISTRONIC PLUS must be active in order for
the function to be available.
Important safety notes
If you fail to adapt your driving style,
DISTRONIC PLUS with Steering Assist and
Stop&Go Pilot can neither reduce the risk of
an accident nor override the laws of physics. It cannot take account of road, weather and
traffic conditions. DISTRONIC PLUS with
Steering Assist and Stop&Go Pilot is only an
aid. You are responsible for the distance to
the vehicle in front, for vehicle speed, for
190Driving systems
Driving and parking